Background*

Mr. Erroll B. Davis, Jr., served as the Chancellor of University System Of Georgia until June 30, 2011. Mr. Davis served as the Chairman of Alliant Energy Corp., from April 2000 to February 1, 2006, Chief Executive Officer from 1990 to July 1, 2005 and served as its President from 1990 to 2003. He served as the Chairman of Interstate Power & Light Company (IP&L), a subsidiary of Alliant Energy Corp., since April 2000 and served as its Chief Executive Officer since April ... 1998. He served as the Chairman the Chief Executive Officer of Alliant Energy Resources, LLC. (AER). Since 1990, he also served as the President and Chief Executive Officer of WPL Holdings. He served as the Chairman of Wisconsin Power and Light Company, a subsidiary of WPL Holdings from April 2000 to February 1, 2006, Chief Executive Officer since April 1998, President since 1987, Executive Vice President since 1984 and Vice President of Finance since 1978. Prior to WP&L, he was on the corporate financial staffs of Ford Motor Co. and Xerox Corp. He served as the Chairman of Edison Electric Institute from June 2002 to June 2003. Mr. Davis has been a Director of Union Pacific Corporation since June 2004. He has been an Independent Director of General Motors Company since July 10, 2009. He serves as a Director of Electric Power Research Institute, Inc and Edison Electric Institute. He serves as a Director of Industrial Energy Applications, Inc. He served as a Director of BP PLC from December 1998 to April 15, 2010. He served as Director of Motors Liquidation Company (formerly General Motors Corporation) from June 5, 2007 to July 8, 2009. He served as a Director of Interstate Power & Light Co. since 1998, PPG Industries Inc. from 1994 to July 10, 2007, BP Corporation North America, Inc. from 1984 to February 1, 2006, Alliant Energy Resources LLC. since 1988, and Alliant Energy Corporation from 1982 to February 1, 2006. He served as Executive Director of Bp PLC - Yorktown Virginia Refinery since 1998. Mr. Davis served as a Board Member of BP Corporation North America, Inc. since 1991 and United States Olympic Committee. He served as a Director of Wisconsin Power and Light Company since 1984. He served as Chairman of the Board of Trustees of Carnegie Mellon University. He is a Member of the Federal Reserve Bank of Chicago Advisory Board as well as the American Society of Corporate Executives, where he serves as the Chairman. He serves as a Member of the Boards of Trustees of the University of Chicago and Carnegie Mellon University. He is a Life Member of Carnegie Mellon University. He serves on the Boards of Conference Board and Wisconsin Association of Manufacturers and Commerce. He served on the University of Wisconsin System Board of Regents from 1987 to 1994. He served as a Director of Union Pacific Railroad Company Inc. Mr. Davis holds a B.S. in Electrical Engineering from Carnegie Mellon University in Pittsburgh and an MBA in Finance from the University of Chicago.

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